基于压电超声触觉显示的可变摩擦研究  

Variable-Friction Study Based on a Piezoelectric Ultrasonic Tactile Display

作　　者：韩凯 李国平[1] 项四通 崔玉国[1] 魏燕定[2] 娄军强[1,2] HAN Kai;LI Guoping;XIANG Sitong;CUI Yuguo;WEI Yanding;LOU Junqiang(Zhejiang Provincial Key Lab.of Part Rolling Technology,School of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China;Key Lab.of Advanced Manufacturing Technology of Zhejiang Province,Colleage of Mechanical Engineering,Zhejiang University,Hangzhou 315474,China)

机构地区：[1]宁波大学机械工程与力学学院浙江省零件轧制成型技术重点实验室,浙江宁波315211 [2]浙江大学机械工程学院浙江省先进制造技术重点研究实验室,浙江杭州315474

出　　处：《压电与声光》2024年第2期213-218,共6页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51975517,52075273,51805276);浙江省自然科学基金资助项目(No.LGF21E050002)。

摘　　要：基于超声波润滑机理和挤压膜效应,该文提出了一种新型的压电超声触觉显示分析模型,并进行了理论和实验分析。在高挤压数状态下,推导出挤压力的解析表达式,开展了超声触觉显示分析模型振动特性实验和定性、定量摩擦辨别实验,探究了振动频率和激励电压对摩擦减少的影响,验证了压电超声触觉显示分析模型显著的减摩擦效果,为构建触觉显示剪切力模式提供了理论基础。Using an ultrasonic lubrication mechanism and extrusion-film effect,a new piezoelectric ultrasonic tactile-display analysis model is proposed and theoretically and experiment allyanalyzed.Using a high extrusion number,the analytical expression of extrusion pressure was derived.A vibration-characteristic experiment was conducted on the ultrasonic tactile-display analysis model and a qualitative and quantitative friction-discrimination experiment was carried out.The influence of the vibration frequency and excitation voltage on friction reduction was explored and the significant friction-reduction effect of the piezoelectric ultrasonic tactile-display analysis model was verified.This provides a theoretical basis for constructing a tactile-display shear-force model.

关 键 词：挤压膜效应 压电超声 触觉显示 减摩擦效果 

分 类 号：TN27[电子电信—物理电子学] TP273[自动化与计算机技术—检测技术与自动化装置]